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US 2013/0155549 A1Published application
Patterned magnetic storage medium
AssigneeHGST Netherlands B.V.
InventorsKurt A. Rubin, Manfred E. Schabes
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Abstract
According to one embodiment, a patterned magnetic storage medium is disclosed herein. The magnetic storage medium includes a magnetic domain, a substantially non-magnetic region laterally adjacent to the magnetic domain, and an exchange spring structure disposed between the magnetic domain and the laterally adjacent non-magnetic region wherein the exchange spring structure comprises implanted ions.
Claims21
A magnetic storage medium, comprising:
- a magnetic domain;
- a substantially non-magnetic region laterally adjacent to the magnetic domain;
- and
- an exchange spring structure surrounding the magnetic domain and disposed between the magnetic domain and the non-magnetic region, the exchange spring structure comprising implanted ions.
1 more element
A method of fabricating a magnetic storage medium, the method comprising:
- fabricating a storage layer;
- fabricating a mask on the storage layer, the mask comprising an opening to an exposed surface of the storage layer;
- implanting a first ion species into the exposed surface of the storage layer to form a first ion region;
- and
- implanting a second ion species into the exposed surface of the storage layer to form a second ion region;
- wherein the first ion species is different from the second ion species and wherein the second ion region is contained within the first ion region.
3 more elements
A magnetic disk drive system comprising:
- a controller module;
- a suspension arm;
- a read/write head;
- and
- a magnetic storage disk, the magnetic storage disk comprising a planar storage layer, the planar storage layer comprising a magnetic domain, a substantially non-magnetic region laterally adjacent to the magnetic domain, and an exchange spring structure disposed between the magnetic domain and the non-magnetic region wherein the exchange spring structure comprises implanted ions.
2 more elements
Dependencies are inferred from the claim text.